Which of the following statements is TRUE?

News Item 3
    Lawyers representing Michael Jackson’s doctor say they are dropping their claim that the singer caused his own death.
    According to the defense, a study they commissioned has shown that any effect from swallowing the anesthetic propofol would be trivial. Doctor Murray’s legal team had previously claimed that Michael Jackson killed himself by ingesting the drug while his doctor was out of the room. (3) A latest witness, a heart specialist who reviewed Doctor Murray’s care of Michael Jackson, has told the court the physician made six extreme deviations from the expected standard of care. Doctor Murray denies a charge of involuntary manslaughter.